Saw



Dec. 4, 1928. 1,694,150

G. C. VOSS SAW Filed July 21, 1927 Inl/@272511.-

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Patented lDec. 4, 192.8.

UNITEDl STATES PATENT OFFICE.

GEORGE o. Voss, oF EXI'RA; IOWA, Assieme or ONE-THIRD To JHN H. RENnLEMAN AND ONE-THIRD To ROY R. WIARD, BOTH or EXIRA, IWA.

SAW.

Application filed July 21,

An object of this invention is to provide an improv-ed saw for the trimming or pruning of trees.

A further object of the invention is to provide an improved trimming or pruning saw having a rotatably adjustable blade.

A further object of the invention is to be found in the pro-vision of improved means for adjusting and positioning the rotatably adjustable blade of a` trimming or pruning saw. n

A further object of the invention is to provide a brush element in combination with a trimming or pruning saw, said brush element being adapted for use in painting or coating the stumps from which limbs of trees have been severed.

In the use of a trimming or pruning saw, it is frequently foun-d desirabl-e to have a blade that may be rotated slightly. about its longitudinal axis or set at an angle Withthe tensioning frame in order that the saw may be operated in restricted spaces between limbs of a tree or to insure the desired angle of out. The construction that forms the subject matter of this invention provi-des simple and etlicient means for so rotating the saw blade as to give varying angles Iof out without the necessity of releasing the tension on the blade.

My invent-ion consists in the construction, combination and arrangement of elements hereinafter set forth, pointed out in the claims andillustrated by the accompanying drawing, in whichf Figure 1 is a side elevation of my improved saw completely assembled and ready for practical use, a portion of the handle being broken away to conserve space. Figure 2 is a cross-section, on an enlarged scale, on the indicated line 2 2 of Figure 1. Figure 3 is a cross-section similar to Figure 2, showing the saw blade set at anangle'with the tensioning frame. Figure 4 is a cross-section similar to Figure 3, showing the saw blade set at another angle with the tensioning.

frame. Figure 5 is an end elevation, on an enlarged scale, of the ratchet end of one form of attaching yoke employed in the invention. Figure 6 is a View .similar to Figure 5 illustrating a different form of ratchet onA an a.t taching yoke. Figure 7 is a view similar to Figures 5 and 6 illustrating yet another form of ratchet end of an attaching yoke; dott-ed lines in Figures 5, 6 and 7 indicating various 1927. Serial No. 207,444.

positions of a ratchet plate. Figure 8 is a View, on an enlarged scale, of the contacting face of a ratchet plate adapted for use with the yoke illustrated in Figure. Figure 9 is a View similar to Figure 8 illustrating a ratchet plate adapted for use with the yokes shown in Figures 5 an-d 7. Figure 10 is a. view similar to Figures 5, 6 and 7 showing yet another form of ratchet end of an attaching yoke. Figure 11 illustrates a ratchet plate adapted for use with the construction shown in Figure 10. Figure 12 is a detail side elevation of the attaching yoke `an-d ratchet mechanism.

In the construction` of the invention as shown, the `numeral 15 Vdesignates a relatively long, slender handle which may be formed of wood or metal and be of any desired length. Bolted or otherwise secured to one end of the handle 15 is a spring bow 16 forming an extension of said handle and tapering toward its free end to terminate in an apertured clip 17. A substantially U-shaped yoke is formed with an arm 18 and a relatively shorter arm 19 and is fastened to the handle 15 adjacent and opposite to the fixed end of the bow 16, the bolts used in securing said -bow to the handle offering convenient means `for securing said yoke, the shorter arm 19 of said yoke being nearer to the free end of said bow than the arm 18. A flexible, toothed saw blade 2O is pinned at one end to' a bolt 21, said bolt being pivotally mounted in and extending thii'ough the aperture in the clip 17, and the other en'd of said blade 20 eX- tends beneath the armV 19 to receive the hooked end of an adjusting rod 22, the other end of said rod being threaded and passing loosely through an aperture in the arm 18 and having an adjusting nut 23 threaded thereon and bearing against said arm. T'ightening of the nut23 produces a pull on the blade 2O and tends to spring the bow 16, thus creating and maintaining a tension on said blade. A ratchetplate 2d is formed with a longitudinal slot 25 Aopening through .one rounded studs or rivets 26, 27 on one surface adjacent the other end, and said plate is adapted to be pivotally mounted on and against the outer face of the armA 19 by means of a bolt 28 passing through said plate and arm, an expansive coil spring 29 being mounted on said bolt between the arm 19 and the nut 80, so that pressure is exerted against said nut tending to hold the surfaces of said end and spaced, f i' arm and plate in intimate contact, the blade 20 being received in the slot 25 and holes or recesses 31, 32 being formed in the outer surface of the arm 19 to receive the studs 26V and 27, respectively.l With the plate 24 in alinement with the arm 19, both studs 26 and 27 are seated in their respective holes or recesses in said arm and held against accidental displacement by the pressure of the spring 29 against the nut 30, but said plate may be rotated about the bolt 28, disengaging said studs from their seats, until, when rotated in one direction, thestud 26 seats in the recess 32, as shown in Figure 3, or, when rotated in the other direction, the stud 27 seats in the recess 31, as shown in Figure 4, the blade, by virtueof its engagement in the slot 25, pivoting in the clip 17 to assume a new position as indicated. In the modification shown in Figures 5 and 9, one stud 'or rivet 26 is shownon the plate 24 adapted to engage in a. single hole or recess 31 in the arm 19, said studV 26 engaging against the margins i of said arm when the plate 24 isrnoved out of alinement therewith. In the modification shown by the combination of Figures 7 and 9, the arm 19 is wider and three holes or recasses 31, 32 and 33 are shown therein in position to be selectively engaged by the stud 26 of the plate 24. Themodification illustrated by the combination of Figures 10 and 11 is the reverse of that just described, the stud 26 being carried bythe arm 19 and the holes or recesses 31, 32 and 33 being formed in the contacting surface of the plate 24, the operation being in all respects similar to that above set forth. A brush member 34, of any desired shape and size, is bolted or otherwise secured to the end of the handlek 15 contiguous to that whereon is fixed the bow 16, and said brush element is convenient and desirable for use in painting or smearing the stumps of limbs after the outting operation, thereby preventing the escape of sap from such stumps and the danger of rotting or decay therein.

It is obvious that modilications and changes of design, shape and proportion are possible Without departing from the spirit of my invention, hence I wish to be understood as being limited solely by the scope of the appended claims.

I claim as my invention- 1. A saw comprising a relatively long handle, a spring bow on and extending longitudinally from one end ot said handle, a U-shaped yoke having arms of unequal length mounted with the shorter of said yoke arms toward the free end of said bow on said handle adjacent and opposite to the fixed end of said bow, a flexible, toothed blade between the free end of said bow and the longer arm of said yoke, means for pivotally mount-ing for angular adjustment about its longitudinal axis and for tensioning said blade, and meanspivotally mounted on the shorter ot said arms and engaging said blade whereby said blade may be rotatively positioned.

2. A saw comprising a relatively long handle, a spring bow on andextending longitudinally from one end ot said handle, a

U-shaped yoke having arms of unequal length mountedwith the shorter of said yoke arms toward the tree end of said bow on said handle adjacent and opposite to the fixed end ot said bow, a flexible, toothed blade between the free end of said bow and the longer arm of said yoke, means for pivotally mounting tor angular adjustment about its longitudinal axis and 'for tensioning said blade, and a ratchet plate engaging said blade and .piv otally mounted on the shorter arm ot said yoke, whereby said blade may be positioned relative to said yoke.

3. In a` saw having a relatively long handle, a spring bow on and extending longitudinally from one end of said handle, a U-shaped yoke having arms of unequal length mounted with the shorter of said yoke arms toward the free end of said bow on said handle adjacent and opposite to the :fixed end of said bow, a flexible, toothed blade between the tree end of said bow and the longer arm of said yoke, and means for pivotally mounting for angular' adjustment about its longitudinal axis and for tensioning said blade, ratchet means i'or positioning said blade relative to said yoke, said means comprising a plate in spring-pressed pivotal relation with the shorter arm of said yoke, rounded studs on said plate engaging in recesses in said arm and a slot in the end of said plate opposite said studs and engaging said blade.

4. In a saw having a relatively long handle, a spring bow on and extending longitudinally from one end ot' said handle, a U-shaped yoke having arms of unequal length mounted with the shorter ot said arms toward the free end ot said bow on said handle adjacent and opposite to the lined end et said bow, a iiexible, toothed blade between the tree end of said bow and the longer arm of said yoke and 11i-cans for pivotally mount-ing for angular adjustment about its longitudinal axis and for tensioning said blade, ratchet means for positioning said blade relative to said yoke, said means comprising a plate in spring-pressed pivotal relation with the shorter arm of said yoke, recesses in one end of said plate having their centers in concentric relation with the pivot thereof, a rounded stud on said. arm engaging with one or another of said recesses and a slot in the end of said plate opposite said recesses and engaging said blade. y

Signed at Exira, in the county of Audubon and State ot' Iowa, this 3rd day oi July, 1927.

f GEO. C. VOSS. 

